ATHLON ENERGY INC

CUSIP: 047477104 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014
Shares 94,537 Value ($000) $5,505 Avg Close — Range —
Q2 2014
Shares 93,500 Value ($000) $4,460 Avg Close — Range —
Q1 2014
Shares 32,900 Value ($000) $1,166 Avg Close — Range —
Q4 2013
Shares 32,900 Value ($000) $995 Avg Close — Range —
Q3 2013
Shares 26,200 Value ($000) $857 Avg Close — Range —